feat(admin): redirect /admin/{orders,stops,products} to /v2

next.config.ts

@@ -110,12 +110,15 @@ const nextConfig: NextConfig = {
   // Redirects
   async redirects() {
     return [
-      // Redirect old paths if needed
-      // {
-      //   source: '/old-path',
-      //   destination: '/new-path',
-      //   permanent: true,
-      // },
+      // Cutover (PR 6, Task 6.1): mobile-first admin lives at /admin/v2/*.
+      // Redirect the v1 list/detail paths to their v2 equivalents.
+      // Use `permanent: false` (307) so we can revert easily if a
+      // regression is caught in monitoring before the v1 files are
+      // removed in Task 6.2.
+      { source: "/admin/orders", destination: "/admin/v2/orders", permanent: false },
+      { source: "/admin/orders/:id", destination: "/admin/v2/orders/:id", permanent: false },
+      { source: "/admin/stops", destination: "/admin/v2/stops", permanent: false },
+      { source: "/admin/products", destination: "/admin/v2/products", permanent: false },
     ];
   },